TN-S和TT接地系统应用于道路照明的分析  

Analysis on TN-S and TT Grounding Systems for Road Lighting

作　　者：刘国壮 施皓 刘发明 LIU Guozhuang;SHI Hao;LIU Faming(Central and Southern China Municipal Engineering Design&Research Institute Co.,Ltd.,Zhuhai 519000,China)

机构地区：[1]中国市政工程中南设计研究总院有限公司

出　　处：《现代建筑电气》2019年第12期31-34,共4页Modern Architecture Electric

摘　　要：主要依据建筑接地规范和工程实际情况,重点对TT系统、TN-S系统两种接地型式的保护原理、参数计算等进行了比较,并阐述了剩余电流保护器(RCD)的应用及总等电位联结的方式,论证了某主干道照明接地系统采用TT系统接地型式的合理性和可行性。This paper mainly compared the protection principles and parameter calculations of the two grounding types of TT system and TN system based on the building grounding specification and engineering actual conditions.It also described the RCD application and total equipotential bonding modes,and demonstrated the rationality and feasibility of using TT system grounding type for a main road lighting grounding system.

关 键 词：道路照明接地系统 接地短路故障 TN-S系统 TT系统 等电位联结 

分 类 号：TU856[建筑科学]